Abstract: Methods and systems for token-based off-chain interaction authorization are disclosed. A hub computer can maintain a network of off-chain (or “layer two”) channels between itself, cryptocurrency issuer computers, and cryptocurrency custodian computers. These off-chain channels correspond to one or more underlying blockchains. The hub computer can receive an access token, a resource provider identifier, and an interaction value. The hub computer can use the access token to identify a cryptocurrency issuer computer associated with the mobile device, and use the resource provider identifier to identify the cryptocurrency custodian computer associated with the access device. The hub computer can update the state of the off-chain channels corresponding to these two computers based on the interaction value, then transmit an authorization response message.

Abstract: A method includes establishing, with a second computer, a first interaction channel with a first initial value associated with the first computer and a second initial value associated with the second computer, and recording them on a blockchain. The method includes conducting with the second computer, a plurality of interactions without recording the interactions on the blockchain. After that, the method includes determining a first current value associated with the first computer, which is than the first initial value. The method also includes initiating a transfer of transfer value from the first computer to a third computer. The method also includes conducting, with the second computer, an update interaction to update of the first current value by the transfer value to obtain a second current value, the second current value used by the first computer in the first interaction channel.

Abstract: A method includes a first device receiving, from a second device, an interaction request message comprising an amount and a second device certificate. The first device can verify the second device certificate using a server computer public key corresponding to a server computer private key. A trusted application in a secure element of the first device can determine whether or not the amount is less than an offline amount stored in the secure element. If the amount is less than the offline amount, the trusted application can determine an updated offline amount based on the amount. The trusted application can generate an interaction response message comprising the amount and a trusted application certificate. The first device can then provide the interaction response message to the second device.

Abstract: A method for conducting cryptocurrency transactions at an access device. The method includes initiating communication with an access device operated by a second user in a transaction between the first user and the second user, and then transmitting a request for transaction data to the access device. The method also includes receiving the transaction data comprising a transaction amount and a second cryptocurrency address from the access device from the access device, and signing, using a private cryptographic key, the first cryptocurrency address, the second cryptocurrency address, and the amount to create a signed cryptocurrency transaction. The method also includes transmitting the signed cryptocurrency transaction to a node of a blockchain network, and receiving a cryptocurrency transaction identifier from the node. The method also comprises generating a cryptogram using at least an access token on the mobile application and at least some of the transaction data.

Abstract: The present invention relates to an electronic language translation aid. The aid includes a receiver for receiving a language sentence in a first language. The translator translates the language sentence into both a literal translation and a correct translation in a second language. The display displays the literal translation and the correct translation. Preferably, the display is configured to display both translations concurrently so that an early language learner can obtain an immediate comprehension of individual word meaning through literal translation, and overall contextual meaning through the correct translation.

Abstract: The present invention relates to an electronic language translation aid. The aid includes a receiver for receiving a language sentence in a first language. A translator translates the language sentence into both a literal translation and a correct translation in a second language. A display displays the literal translation and the correct translation. Preferably, the display is configured to display both translations concurrently so that an early language learner can obtain an immediate comprehension of individual word meaning through literal translation, and overall contextual meaning through the correct translation.

Abstract: Signatures indicating potential problems can be used by a predictive support component. The predictive support component can check to see if a signature matches data for a data source associated with the software.

Abstract: A knife block for mounting a multiplicity of cutting knives in fine gauge cut pile tufting machines. The knife block has an elongated body member with a multiplicity of longitudinally spaced preferably alternately offset holes each receiving a knife supporting peg secured therein with a portion extending from a face of the block. The upstanding portion of each peg has a central web of reduced section and a wedge shaped seat on each side of the web. A tufting machine knife is supported in each seat abutting the web and a cap on the web clamps the knives in the seat.